Captain Kathryn Janeway (Kate Mulgrew) certainly never intended to make any enemies inStar Trek: Voyager, butbeing the captain of a Federation starship in the uncharted Delta Quadrant inevitably creates new foes for Captain Janeway.Brand-new Delta Quadrant aliens inStar Trekwere created as antagonists and enemies for Captain Janeway and thecrew of the USS Voyager, from the Kazon and Vidiians in earlier seasons ofStar Trek: Voyagerto Species 8472 and the Hirogen inVoyager’s second half. Despite Janeway’s attempted alliance with them, the Borg are also an ongoing threat fromStar Trek: Voyagerseason 4 until the series' end.
It’s not justStar Trek’s new Delta Quadrant alien speciesin general that became Captain Janeway’s enemies. Individual people in the Delta Quadrant also clashed with Janeway during the long journey back to the Alpha Quadrant, as Voyager entered their space or Captain Janeway’s crew committed unknown offenses against them.These specific enemies have a much more personal bone to pick with Captain Kathryn Janeway; they’ve got vendettas against Janeway up their sleeves, interstellar empires to rule, and forceful differences of opinion that Janeway just can’t let slide.

10 Star Trek: Voyager Alien Villains Ranked, Worst To Best
New alien villains fought against Captain Kathryn Janeway and the USS Voyager in the Delta Quadrant, but some foes were more successful than others.
7Older Kes (Jennifer Lien)
Star Trek: Voyager Season 6, Episode 23 - “Fury”
AfterJennifer Lien leftStar Trek: Voyager, Kes returns one more time inStar Trek: Voyagerseason 6, episode 23, “Fury”. This Kes is hardened and angry, returning to the USS Voyager near the end of her life to exact vengeance on Captain Kathryn Janeway with the titular telekinetic fury … and a phaser.
“Find another way home. Captain Janeway will help you if you give her a chance. Try to remember who you were. Try to remember me.”

- Kes,Star Trek: Voyagerseason 6, episode 23, “Fury”
Kes blames her suffering on the misremembered claims that Janeway forced Kes' departure from Voyagerseveral years earlier. Strategic time travel allows Janeway to connect Kes with her younger self before sending the elder Ocampa on her way, erasing the whole ordeal.

6Arturis (Ray Wise)
Star Trek: Voyager Season 4, Episode 26 - “Hope and Fear”
InStar Trek: Voyagerseason 4, episode 26, “Hope and Fear”, an unexpected consequence ofJaneway’s alliance with the BorginStar Trek: Voyagerseason 4 arises with the arrival of Arturis (Ray Wise), who claims thatJaneway’s aid in defeating Species 8472 freed up Borg resources to assimilate more Delta Quadrant species.After thousands of years keeping the Borg at bay, Arturis' people were assimilated. Arturis' revenge plot appeals to Janeway’s desire to bring her crew home, in the form of the USS Dauntless, a fake Federation starship with a quantum slipstream drive that will deliver Janeway directly to the Borg for her own assimilation.
Admiral Janeway’s USS Dauntless inStar Trek: Prodigyseason 1 is named after the fake Starfleet ship from “Hope and Fear”.

5Kashyk (Mark Harelik)
Star Trek: Voyager Season 5, Episode 10 - “Counterpoint”
Kashyk (Mark Harelik), an inspector for the telepath-hating Devore, becomes Captain Janeway’s enemy through deception and betrayal, which is almost worse than actual military strikes against Voyager. InStar Trek: Voyagerseason 5, episode 10, “Counterpoint”, Janeway secretly harbors telepathic Brenari refugees while Voyager is in Devore space.
Inspector Kashyk convinces Janeway that he’s seen the error of his ways, and wants to change. Over repeated meetings,Janeway easily falls for the cultured and curious Kashyk,but becomingCaptain Janeway’s love interestturns out to be an act to earn Kathryn’s trust and get to the Brenari hidden in Voyager’s transporter buffer.

4The Clown (Michael McKean)
Star Trek: Voyager Season 2, Episode 23 - “The Thaw”
InStar Trek: Voyagerseason 2, episode 23, “The Thaw”, the Clown is an antagonist for more than just Captain Janeway, but it’s Janeway who ultimately emerges victorious in a battle of wits against the Clown.The Clown is the manifestation of fear that exists within a neural network, created from the minds of the 5 people hooked to the network. In order to generate a constant supply of fear and ensure his survival, the Clown makes the network hellish for his victims, and refuses to let them leave. Anyone engaging with the Clown is trapped in the network with him, so how can anyone defeat him?
Captain Janeway sets herself up as the ultimate prize for the Clown, demanding the release of the Clown’s hostages – which includes Ensign Harry Kim (Garrett Wang) – in exchange for Janeway herself. The catch is that this is aholographic version of Captain Janewayinstead of the real thing, andthe Clown can’t feed off of an inorganic mind.“Drat,“indeed.

The Clown reappears inStar Trek: Lower Decksseason 4, episode 1, “Twovix”, as one of 3 famous holographic characters fromStar Trek: Voyagerwho get activated by the USS Cerritos crew.
3Captain Rudolph Ransom (John Savage)
Star Trek: Voyager Season 5, Episode 26 & Season 6, Episode 1 - “Equinox”
Captain Rudolph Ransom of the USS Equinox is a victim of the same fate that originally befell Janeway and the USS Voyager, as a Federation starship that was brought to the other side of the galaxy by the Caretaker. The difference is that while Janeway held tight to Starfleet ideals,Ransom abandoned respect for sentient life and murdered innocent non-corporeal life formsto create fuel for a faster journey to the Alpha Quadrant. Ransom tries to justify his actions by saying the Federation is out of reach, so the Equinox crew did what they must to survive, but Janeway nonetheless holds Ransom accountable.
Captain Janeway has privileges that Captain Ransom didn’t.
In response, Ransom points out that Captain Janeway has privileges that Captain Ransom didn’t. The USS Voyager is a more advanced starship than the Equinox, and Voyager gained crew members from Commander Chakotay’s Maquis raider to replace lives lost on the initial journey. The Equinox’s experience as anAlpha Quadrant vessel in the Delta Quadrantwasn’t so lucky. Both Janeway and Ransom are committed to the survival and safety of their crews, andRansom challenges Janeway to consider whether she would have also abandoned Starfleet idealsif the circumstances were swapped.
2Annorax of the Krenim Imperium (Kurtwood Smith)
Star Trek: Voyager Season 4, Episodes 8 & 9 - “Year of Hell”
WhileCaptain Janeway hates time travel, and does her best to avoid time anomalies, Annorax of the Krenim Imperium (Kurtwood Smith) embraces the ability to use time as a weapon. With Krenim time weapons that erase people, ships, and entire planets from existence, Annorax continues to alter the timeline to increase the size and influence of the Imperium. When the USS Voyager becomes the proverbial fly in the ointment that seems to prevent Annorax from reviving his accidentally erased family,Annorax sets his sights on erasing Janeway and her crew.
ThroughoutStar Trek: Voyagerseason 4, episodes 8 & 9, “Year of Hell”, Voyager suffers heavy losses as a result of Annorax’s targeted attacks. Even with the losses, and the Krenim’s advanced technology handily outpacing Voyager’s,Janeway’s tenacity still matches Annorax’s.Only when it seems like there’s nothing left to lose does Janeway make the sacrifice play that saves the Voyager crew and the timeline.

6 Multiverse Timelines Star Trek Can’t Erase
Some Star Trek timelines have to continue to exist in the multiverse, even if it seems like they’ve been overwritten.
1The Borg Queen (Susanna Thompson, Alice Krige)
Star Trek: Voyager Seasons 5–7
Captain Janeway’s most formidable individual enemy inStar Trek: Voyageris undoubtedly theBorg Queen(Susanna Thompson, Alice Krige). From the time the USS Voyager enters Borg space inStar Trek: Voyagerseason 3’s cliffhanger, “Scorpion, Part 1”, the Borg Queen is unseen, but watching Janeway through the eyes of Borg drones.Captain Janeway’s liberation of Seven of Nine may have been the biggest insult against the Borg Queen, who tried to lure Seven back to the collective inStar Trek: Voyagerseason 5, episodes 15 & 16 “Dark Frontier”.
Star Trek: Voyagerseason 5, episodes 15 & 16

Star Trek: Voyagerseason 6, episode 26
Star Trek: Voyagerseason 7, episode 1
Star Trek: Voyagerseason 7, episodes 25 & 26
“Endgame”
Alice Krige
Despite appearing in only four episodes ofStar Trek: Voyager,the Borg Queen has a lasting impact on Captain Janeway’s life.Star Trek: Voyager’s finale, “Endgame”, shows that in Janeway’s original timeline, the USS Voyager takes 23 years to reach the Alpha Quadrant. After years of research and development on anti-Borg weaponry,Admiral Janeway goes back in timeto destroy the Borg Queen. Janeway’s neurolytic pathogen successfully infects the Borg, leaving the Borg Queen little more than a shell of her former self. Of all Janeway’s enemies inStar Trek: Voyager, only the Borg Queen can inspire that kind of animosity in Janeway herself.